The Absolute Quantum Gravimeter is the only quantum gravity sensor available on the market place. Thanks to its disruptive technology, this instrument offers unique features:
- Absolute gravity measurement at the µGal level.
- Automated Continuous Data Acquisition for several months. No long-term drift.
- Excellent immunity to ground vibrations thanks to an active compensation system (no mechanical isolation).
- Easy and quick operation : the AQG is ready to measure within 1h (no laser alignment nor mechanical assembling, no preliminary pumping, no superspring). User-friendly software requiring no knowledge in quantum physics.
- Compact and transportable sensor.
- Low maintenance constraints (in particular, no moving parts in our vacuum chamber).
- Station to station repeatability of the absolute measurement within a few μGal.
Specifications & Characteristics
| Sensitivity: | 50 µGal/√Hz at a quiet place |
| Measurement frequency: | 2 Hz |
| Long-term stability: | < 1 μGal |
| Accuracy: | under evaluation |
| Dimensions : | Sensor head: h = 70 cm / D = 38 cm |
| Laser & electronics: | 100 x 50 x 70 cm3 |
| Mass Sensor head: | 25 kg, control unit : 75 kg |
| Power consumption: | 250 W typical |
Applications
Geophysical research:
- Monitoring of volcanoes
- Earthquake research
- Hydrology
Exploration and management of underground resources:
- Hydrocarbon and mineral exploration
- Quantification of subsidence
- Aquifer management
Civil engineering:
- Integrity studies of roads, dams and dykes
- Detection of voids or cavities
